And that is not counting the OH cost of the dead time flying. Black in the 80's I worked at a place where they looked at chartering a plane for one project - d

And that is not counting the OH cost of the dead time flying. Black in the 80's I worked at a place where they looked at chartering a plane for one project - doing some R&D in a deep coal mine. As the cost of the senior engineers at our > 600% oh rate for them to drive to the site was more expensive than a plane charter - we where based at an airfield